It is my responsibility to ensure that the Payload Hazardous Servicing Facility (PHSF), where the payload is housed, is kept to specified cleanliness requirements. The PHSF is where the payload is kept to complete final integration and testing. It is also where they fuel the payload and encapsulate it before it is transported to the rocket on the launchpad. I try to make people feel comfortable when they come to the PHSF, because, after all, it is a hazardous facility. The contamination personnel tell me the cleaning requirements for each mission; these can take effect 30 days before the payload is even delivered. The requirements can include things like wiping the walls, cleaning the floors, pulling the trash, ensuring the tacky mats are always clean. I am also responsible for the changing room where engineers put on cleanroom suits before entering the area where the spacecraft is. I try to get in first thing every morning and get my duties accomplished so that I am not in the way when people are working on the payload.